-jacksow



H. A. JACKSON.

COMBINED COAL AND GAS GRATE.

APPLICATION FILED IUNE 5,1919.

1,320,761 Patented Nov. 4, 1919.

d: -QII Q NQ ijjgijjjl IIIIIIIImIIIgIIIIIIIIIMMIIIII "ppiicanh sied .rune `5, 1919. serial No. :301.951

1Y0,allxfuzlwmimqyicolnccrn yBe it'knownthat I, HARRY A. JACKSON, a citizen of lthe United IStates, residing at Newark, 'inthe county of Essex and the State `of, l\lew.I ersey, have invented certain new and useful Improvements in Combined ranged Coal and Gas Grates, of which the following is a specification.

This invention relates to a coal grate in which a fire can be kindled or started without the use of wood or charcoal, or if a wood fire is wanted it can be started without the use of kindling. It is primarily designed howeverfor the use of hard coal stoves.

A further object of the invention is toA provide a grate of this character in which the gas openings are protected from ashes, and which can be entirely withdrawn from the stove, through the stove front for the purpose of cleaning out said openings in case they become clogged, as it is practically impossible to prevent a certain amount of fine ash dust from settling in said openings during a more or less long period of use.

With these objects in view the invention consists in the novel features of construction hereinafter pointed out, set forth in the claims, and shown in the accompanying drawings, in which zd Figure l is a plan view of the grate, end portions of the stove being indicated in dotted lines.

Fig. 2 is an irregular section on the line 2-2 of Fig. l.

Fig. 3 is a section on the line 3 3 of Fig. l.

In the drawings l designates the grate sections. These are arranged parallel to each other in the usual manner of stove grat-es, and are rotatable, in order to clean, shake, or dump the coal fire. Each section comprises a longitudinal hollow core extending the full length of the grate, and projecting rearwardly through the stove back. Extending laterally from these cores are fingers 3, which form the grate bars. These fingers are also hollow and communicate with the hollow cores of the grate sections. In normal position the fingers of one section extend oppositely from those of the other section.

The fingers are slightly rounded on top and are V-s'hape incross section, so that the tops of the fingers overhang the sides. This AaRYgnsancxsoN; or NEWARENEWUEBSEY. 'a' f= 1:. eoivnarivnncont nnen-Gas GRATE;

than at theI top and; prevents?, legging 2er Specification of Letters Patent. I y Nov, '4;i19115'9, i' '1.'

the grate with ashes, and also s"erve s t o ,price vent ashes falling between lthe fingers clogsing-thaeae:barnerffoneaiegai i 1- These openings as indicated Aat fare aflongitudinally along the sides of the' fingers, and are pitched upwardly and outwardly, opening about one fourth of an inch below the tops of the fingers. Extend` ing upwardly and outwardly they tend to direct the gas flame up between the fingers. The rear projecting ends of the cores carry funnel shaped gas receivers 6 which also serve as mixing chambers. A gas supply pipe 7 is arranged parallel to the back of the stove and has branch supply pipes 8 that extend into the mixing chambers 6, but which are not connected thereto. Air shields 9 work on the pipes 8, which are threaded for this purpose. By proper spacing of the shields 9 from the chambers 6 the amount of air fed thereto is regulated. A suitable valve, not shown, is placed at any convenient point in the pipe 7.

I have indicated in dottedl lines the stove back l0. This is of course provided with suitable openings through which the cores 2 pass and in which they have their bearings. But in order to allow ready removal of the grate for cleaning these opening are large enough for the .mixing chambers 6 to pass through. I therefore place on the cores bearing disks 11, which fit in the openings in the back 10 when the grate sections are in position for use.

The front piece 10L in which the forward ends of the cores bear is made removable. The forward portions of the cores 2 ar'e solid and extend in advance of the grate sections in the form of shafts 12, on which are cast the usual mutilated cog wheels for rotating the two grate sections, one of the shaft sections being extended and squared to receive the usual shaker, as indicated at 14.

At their outer ends the lingers 3 are connected and braced by V-shaped bars 5, which extend the length of the grate sections.

It will be noted that by removing the stove front 10a the grate sections can be slipped longitudinally' out of position, the mixing chamber 6 passing readily through the bearing openings normally filled by the disks l1.

The advantages of 'a grate constructed in the.k manner obvious.` v

VVhet I claiin is:

l. In a combined coal and gas grate,op

positely arranged rotatable sections, eric-h section having a longitudinal liollow'core, a series 0f liollow fingers extending lafterallyfroni one side of said core and coiniiiunicztting therewith, each finger being V- l Qopies of this patent may be obtained for shown and described will be ve cents eaeh, by addressing the Washington, D. C.

2'.. In a, coal and gas grate, :i grate section having ai longitudinally extending hollow'core,ineeiis for admitting 'ga's to said ACore, fingers extending from one side of the ,core, said fingers being hollow, the fingers being V-sliaped and having gas openings in their` sidesfthe longitudinal axis of said openings being inclined with respect to the 1 finger sides, directing the fiziiiie upwardly and outwardly, and bars connecting the lower "edgesiof the fingers, es and for the purpose set forth. I

In testimony whereof Ifziiix in'y signature.

Commissionerv ofv atents. 

